Utilization of homoserine lactone as a sole source of carbon and energy by soil Arthrobacter and Burkholderia species

Cited 14 time in webofscience Cited 0 time in scopus
  • Hit : 267
  • Download : 0
Homoserine lactone (HSL) is a ubiquitous product of metabolism. It is generated by all known biota during the editing of certain mischarged aminoacyl-tRNA reactions, and is also released as a product of quorum signal degradation by bacterial species expressing acyl-HSL acylases. Little is known about its environmental fate over long or short periods of time. The mammalian enzyme paraoxonase, which has no known homologs in bacteria, has been reported to degrade HSL via a lactonase mechanism. Certain strains of Variovorax and Arthrobacter utilize HSL as a sole source of nitrogen, but not as a sole source of carbon or energy. In this study, the enrichment and isolation of four strains of soil bacteria capable of utilizing HSL as a carbon and energy source are described. Phylogenetic analysis of these isolates indicates that three are distinct members of the genus Arthrobacter, whereas the fourth clusters within the non-clinical Burkholderia. The optimal pH for growth of the isolates ranged from 6.0 to 6.5, at which their HSL-dependent doubling times ranged from 1.4 to 4 h. The biodegradation of HSL by these 4 isolates far outpaced its chemical decay. HSL degradation by soil bacteria has implications for the consortial mineralization of acyl-homoserine lactones by bacteria associated with quorum sensing populations.
Publisher
SPRINGER
Issue Date
2006-03
Language
English
Article Type
Article
Keywords

TRANSFER-RNA SYNTHETASES; ESCHERICHIA-COLI; VARIOVORAX-PARADOXUS; BACTERIA; HOMOCYSTEINE; SIGNALS

Citation

ARCHIVES OF MICROBIOLOGY, v.185, no.1, pp.47 - 54

ISSN
0302-8933
DOI
10.1007/s00203-005-0065-5
URI
http://hdl.handle.net/10203/91030
Appears in Collection
CE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 14 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0